Home / 1,721.04-2,373.40-1,161.60

Finding the Fourth Proportional to 1,721.04, 2,373.40 and 1,161.60

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Solution

The fourth proportional to 1,721.04, 2,373.40 and 1,161.60 is: 1,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.04 : 2,373.40 = 1,161.60 : x
  2. Step 2: Convert to fraction form
    1,721.04/2,373.40 = 1,161.60/x
  3. Step 3: Cross multiply
    1,721.04x = 2,373.40 × 1,161.60
  4. Step 4: Simplify right side
    1,721.04x = 2,756,941.44
  5. Step 5: Solve for x
    x = 2,756,941.44/1,721.04
  6. Step 6: Final answer
    x = 1,601.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.